(function(){
    let myCharts=echarts.init(document.querySelector('.pie'));
    let option = {
        tooltip:{
           trigger:"item" ,
           formatter:"{a}<br/>{b}:{c} ({d}%)"
        },
        series: [
          {
            name: '点位统计',
            type: 'pie',
            radius: ["10%", "60%"],
            center: ['50%', '50%'],
            roseType: 'radius',
            itemStyle: {
              borderRadius: 0
            },
            data: [
              { value: 20, name: '上海' },
              { value: 18, name: '北京' },
              { value: 12, name: '南京' },
              { value: 10, name: '云南' },
              { value: 18, name: '广州' },
              { value: 16, name: '四川' },
              { value: 12, name: '河南' },
              { value: 18, name: '邯郸' }
            ],
            label:{
              fontSize:10
            },
            labelLine:{
              length:6,
              length2:8
            }
          }
        ]
      };
      myCharts.setOption(option)
      window.addEventListener('resize',function(){
        myCharts.resize();
      })
})()